【单选题】乙肝病毒感染过程中,对机体有保护作用的抗体是
【判断题】对机体有保护作用的HBV抗体是抗-HBs
【单选题】During the PSC inspection,under the provisions of SOLAS 74,whichone may be regarded as clear groups for ship’s determine?
A.
failure of proper operation of propulsion
B.
paint peeling off the uptake
C.
no operation procedures of the oil separators
【单选题】During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships’ detainment?()
A.
failure of the proper operation of emergency generator
B.
insulation of piping including exhaust pipes in engine room contaminated by oil
C.
improper operation of bilge of bilge of bilge pumping arrangements